Patents Assigned to Liebherr-Werk Ehingen GmbH
  • Emergency drive for a construction machine and method for operating the emergency drive
    Patent number: 8936118
    Abstract: The present disclosure relates to an emergency drive for a construction machine, comprising a hydraulic motor which is connectable with a pump transfer gearbox of a drive of the construction machine via a first mechanical shaft and a port provided for this purpose.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: January 20, 2015
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Joerg Gebele
  • Telescopic Boom and Crane
    Publication number: 20140339188
    Abstract: A telescopic boom for a crane has at least two telescopable telescoping sections in the form of lattice pieces, each of which exhibits a hollow structure that has in essence the shape of a box. The bottom chords of adjacent sections have in each instance a pinning structure to provide for pinning to each other during normal crane operations. By way of the design of at least the outer telescoping section, at least some of the force that is introduced into the pinned joint can be dissipated into the top chord of the boom.
    Type: Application
    Filed: April 10, 2014
    Publication date: November 20, 2014
    Applicant: Liebherr-Werk Ehingen GmbH
    Inventor: Sebastian BRZOSKA
  • Method for the Speed Synchronization of a Crane Drive and Crane Drive
    Publication number: 20140283507
    Abstract: A method is used for synchronizing the speed of a hydraulic crane drive having at least one hydraulic consumer, which is fed with a variable volumetric rate of flow by way of at least one hydraulic variable displacement pump. The at least one hydraulic variable displacement pump is driven by way of a drive unit of the crane. By way of the crane control system, a swashplate angle of the at least one variable displacement pump is open and/or closed loop controlled as a function of the demanded volumetric flow rate for at least one consumer and/or on the basis of one additional parameter.
    Type: Application
    Filed: December 20, 2013
    Publication date: September 25, 2014
    Applicant: Liebherr-Werk Ehingen GmbH
    Inventor: Alexander KISSELBACH
  • Lattice piece and crane
    Patent number: 8839969
    Abstract: A lattice piece for a crane includes four corner posts and of null bars and diagonal bars connecting the same, wherein at least a part of the null and diagonal bars are foldably articulated to at least one corner post, and at least one adjusting unit is provided for performing the folding movement, wherein at least one drive is connected or connectable with at least one adjusting unit.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: September 23, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Hans-Dieter Willim
  • MOBILE CRANE
    Publication number: 20140277969
    Abstract: The present application relates to a mobile crane comprising a telescopic boom which has a hinged section and at least one telescopic section which can be telescoped out of it, or to a crawler-mounted crane. In accordance with one embodiment, as a position detection device, it has at least one transducer in the form of an inductively operating transponder, a receiver unit for the sensing of the position of the transducer, a control device for control in dependence on a signal of the receiver unit, as well as a signal transmission device in the form of a databus for the transmission of the signal data from the receiver unit to the control device.
    Type: Application
    Filed: June 3, 2014
    Publication date: September 18, 2014
    Applicant: Liebherr-Werk Ehingen GmbH
    Inventor: Erwin Morath
  • Crane control system and crane
    Patent number: 8825313
    Abstract: A crane control system with a display and entry unit for showing and entering the crane operating mode information that is required for the load moment limiting and/or the crane control, especially corresponding to its current mechanical layout, wherein the crane control system comprises a logic that determines application and/or outfitting related dependencies between two or more input parameters.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: September 2, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventors: Peter Abel, Edwin Cettinich, Ulrich Fuchs, Oliver Ruoss
  • Sensor for measurement of desired variable of medium
    Patent number: 8805638
    Abstract: A sensor for measurement of a desired variable of a medium includes a sensor having at least two measured value pick-ups and at least two processing units within a sensor housing. The measured value pick-up is defined as a part of the sensor which directly responds to a measured variable to be detected. Each measured value pick-up may be connected via a signal line to each processing unit so that the signal value representing the measured value can be transferred to the processing unit. The at least two measured value pick-ups pick up at least two measured values independently of one another and transfer them to their connected processing units. With this arrangement, the effective actual values of the measurement value to be checked is applied to both measured value picks-ups without time delay.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: August 12, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Erwin Morath
  • Teleskopierbare Schiebeholmvorrichtung und Verfahren zu deren Nutzung
    Publication number: 20140216188
    Abstract: The present invention relates to a telescopable sliding beam device with a sliding beam box and at least one first sliding beam and at least one second sliding beam, which are telescopable into each other, wherein the second sliding beam is mounted in the sliding beam box so as to be steplessly telescopable, and wherein in a first supporting region the first sliding beam is retracted and a stepless adjustment of the sliding beam device can be carried out by shifting the second sliding beam. According to the invention, the first sliding beam furthermore is extended in a second supporting region and a stepless adjustment of the sliding beam device can be carried out by shifting the second sliding beam.
    Type: Application
    Filed: January 28, 2014
    Publication date: August 7, 2014
    Applicant: Liebherr-Werk Ehingen GmbH
    Inventor: Alexander Patte
  • Mobile crane
    Patent number: 8798851
    Abstract: The present invention relates to a mobile crane having means for wireless reception or for the determination of data identifying the location of the crane as well as having transmission means which are in communication with these means or can be connected to them, wherein the transmission means are configured such that they transmit the data identifying the location of the crane from the crane to a receiver in a wireless manner.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: August 5, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Erwin Morath
  • Guide cabling arrangement for a crane
    Patent number: 8794457
    Abstract: This invention relates to a crane, in particular a telescopic crane, with a frame suspended on the load hook for taking up a special load, in particular for taking up a rotor blade of a wind turbine. In accordance with the invention a single guide cable without guying function is provided, which proceeding from the boom foot is tensioned parallel to the direction of the longitudinal axis of the boom system and is attached to the boom system at its end, wherein a frame suspended on the load hook is connected with the guide cable via at least two control cables.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: August 5, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Yggve Richter
  • Mobile crane
    Patent number: 8777027
    Abstract: The present application relates to a mobile crane comprising a telescopic boom which has a hinged section and at least one telescopic section which can be telescoped out of it, or to a crawler-mounted crane. In accordance with one embodiment, as a position detection device, it has at least one transducer in the form of an inductively operating transponder, a receiver unit for the sensing of the position of the transducer, a control device for control in dependence on a signal of the receiver unit, as well as a signal transmission device in the form of a databus for the transmission of the signal data from the receiver unit to the control device.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: July 15, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Erwin Morath
  • Manipulator for the assembly of rotor blades of a wind power installation
    Patent number: 8757402
    Abstract: A manipulator, preferably for the assembly of rotor blades of a wind power installation, has a receiving unit for the receiving of a rotor blade and a connection unit via which the manipulator is connected or connectable to the boom of a crane in a torque-rigid manner so that the position and/or alignment of a rotor blade received in the receiving unit relative to the boom can be fixed by the manipulator.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: June 24, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Hans-Dieter Willim
  • Crane and method for erecting the crane
    Patent number: 8720709
    Abstract: A method for telescoping a main boom includes guying the erected main boom during the telescoping operation, the main boom consisting of a telescopic boom which is guyed via a spatial boom guying. Further, a crane may include a telescopable main boom, a spatial guying and a crane controller, wherein the crane controller determines the necessary guy dimension of the spatial guying in dependence on the current main boom length during the telescoping operation.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: May 13, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Hans-Dieter Willim
  • Crane
    Patent number: 8678208
    Abstract: The present invention relates to a crane having a load hook directly/indirectly fastened to the crane hoist rope and having a frame suspended at the load hook for taking up a special load, in particular for taking up a rotor blade of a wind turbine, wherein the control element(s) of a frame suspended at the load hook is/are guided along a guider rope region of the crane hoist rope.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: March 25, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Yggve Richter
  • Hoisting limit switch and lifting device
    Patent number: 8657134
    Abstract: The present disclosure relates to a hoisting limit switch for limiting the maximum allowed hoisting height of a hoisting cable, wherein the hoisting limit switch includes a read-write device for reading and writing data, and a means from which the operating condition of the hoisting limit switch can be read out by the read-write device.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: February 25, 2014
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Erwin Morath
  • Control system for construction machines and method for operating the control system
    Patent number: 8649943
    Abstract: A control system for a construction machine includes at least one sensor and at least one controller, wherein a serial connection exists between the sensor and the controller, and wherein at least one sensor and/or controller are of the two-channel or multi-channel type. Furthermore, this invention relates to a method for operating such control system for a construction machine.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: February 11, 2014
    Assignee: Liebherr Werk Ehingen GmbH
    Inventors: Erwin Morath, Eduard Zink, Joachim Treuer
  • METHOD OF ASSEMBLY OF A MOBILE CRANE, AND MOBILE CRANE
    Publication number: 20140027398
    Abstract: Method for the assembly of a mobile crane, particularly a telescopic crane, at a construction site, having a main boom as well as at least one boom enhancement loaded on a means of transport, and comprising at least one lattice section, which method has the method steps of moving the mobile crane and/or the means of transport, to coarsely align the crane main boom and at least one lattice section of the boom enhancement to each other, connecting the crane main boom to the lattice section by means of one or more traction means, and raising the main boom, which results in traction being applied to the one or more traction means, to align the axes of the junctions of the main boom and of the lattice section at least partially for the subsequent assembly.
    Type: Application
    Filed: May 8, 2012
    Publication date: January 30, 2014
    Applicant: Liebherr-Werk Ehingen GmbH
    Inventor: HANS-DIETER WILLIM
  • Driving device for a crane
    Patent number: 8567539
    Abstract: The present disclosure relates to a driving device for a crane, wherein the crane includes an undercarriage and an uppercarriage, with at least one undercarriage engine arranged in the undercarriage, which is an internal combustion engine, and with at least one uppercarriage drive, wherein the uppercarriage drive can be driven by means of a torque and/or power transmission device to be driven by the undercarriage engine. Furthermore, the present disclosure relates to a crane with such driving device.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: October 29, 2013
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventors: Erwin Morath, Mikica Rafailovic
  • Piston-cylinder unit
    Patent number: 8516945
    Abstract: The present invention relates to a piston-cylinder unit with a piston with adjoining piston rod, which is movably mounted in a cylinder, wherein the piston and the piston rod have a cavity into which at least one rod protrudes, by means of which an electrically conductive connection can be made directly or indirectly.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: August 27, 2013
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Erwin Morath
  • Crane, preferably crawler or truck crane
    Patent number: 8505754
    Abstract: The present disclosure relates to a crane, preferably a crawler or truck crane, comprising a crane monitoring means for monitoring the operating condition of the crane, including a calculation unit and a control and display unit. In accordance with the present disclosure, there is additionally provided an operations planner with a separate monitor output, which includes a further calculation unit and which operates on the one hand as a device for planning the operation of the crane and on the other hand as a redundant crane monitoring unit in addition to the crane monitoring means.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: August 13, 2013
    Assignee: Liebherr-Werk Ehingen GmbH
    Inventor: Erwin Morath